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General
Indian with 20 years of experience in CTV backed by
strong Original equipment manufacturer (OEM) sales and service
network in India with service centres in all major metros.
Trained technical personnel with 20 + years of experience
Now introducing Automated Cable Fault Locating System in Trailer in India with integrated Pre-locator, Cable route tracer and
High voltage modules up to 40kV
The system modularity ensures that even in case of malfunction of any one unit, cable fault location can still be carried out.
Application
METRIX 1.0 is a diagnostic and test system, which is designed for testing and fault location of both LV, MV & HV cables.
The key parameters are flexible to satisfy customer’s specific requirements.
Description
Telemetrics make Cable Fault Locating System is a basic requirement of any power distribution Automated network company.
It is a very powerful tool to localize the underground cable fault of any nature in short time. The system is a mobile laboratory
having all types of required equipment available to the operator at a site. The Automatic Cable Automated Cable Fault Locating
System is a total solution for fault location in any type of power cables.
In Trailer system operator safety is a highest priority. Generally the Trailer is divided in two sections, operator section and high
voltage section. HV section is equipped with a proper safe guard such as door interlocks, earth monitoring system, auto
discharge, and emergency off controls are provided on operating control panel. These safety controls are very important in any
emergency to avoid any major accident.
Pre-location
After identifying the type of fault, pre-location of fault done determined using the latest pre-location methods such as TDR, ICM,
SIM/MIM & Decay that are provided in the system.
TDR / ECHO Method
A narrow electromagnetic pulse with a fast rise time is sent in the cable that reflects back from the fault point /far end where the
impedance is changed. The VOP for each cable depends on the cable dielectric material is set. The distance to the fault is then
computed automatically and displayed on pre-locator.
SIM/MIM Method
The Time Domain Reflectometer using a 200MHz transient recorder to record more than 3 measurements showing the fault
position during only 1 high voltage impulse.
ICM Method
It is a current transient analysis method of pre-location of fault. During a breakdown or flash over at the fault, transient's waves
are generated that oscillate back to the source end which is utilized through a linear current coupler and store and displayed on
pre-locator.
Decay Method
It is a voltage transient analysis method of pre-location of fault. Using DC voltage, at a fault point voltage transients are
generated that oscillate back to the source end which is utilized through a voltage divider coupler and store and displayed on
pre-locator.
DC Test
Used to check the dielectric strength of insulation in the cable and prove the integrity to identify and confirm fault conditions with
a current of 25 mA. The over-current trip is provided for protection to the system under test in the event of the cable under test
breaking down.
Pin-point
Accurate pin-pointing of cable fault is carried out using surge wave tester with the help of surge wave receiver in acoustic
method.
Proof/Burn Test
Using the available DC high voltage with 200mA outputs, the maximum current is applied for stabilizing the unstable cable faults
for short period. This allows easier and quick pre-location and pinpointing of the unstable faults.
Functions
The automatic operating control unit is an integrated central operator inter-face for all operational modes and provides the
monitoring of the system and the integrated safety facilities. It enables an easy and quick operation of the system, prevents
operational errors and reduces the fault location time considerably. All necessary selection of equipment, switching and
operations such as pre-locations, high voltage test, and pin-pointing is carried out on control panel.
Safety
Telemetrics gives highest priority to safety of operating personnel. The Trailer system is divided in two sections, operator section
and HV section. HV section is equipped with proper safe guards such as door interlocks, earth monitoring system, auto
discharge. Emergency off control is provided on control panel. External emergency off switch is provided to switch off in case of
any emergency. Earth monitoring system is provided which trips the entire system in case of any dangerous high voltages (more
than 40kV DC) accumulated on Trailer chassis during high voltage testing. Copper shielding is provided for good and proper
earth in high voltage section.
Operating Panel
Key Features
- DC cable testing up to 40 kV
- Burning up to 200mA
- Surge voltage in kV : 4 - 8 - 16 - 32
- Surge energy at each stage : 1000J / 1500J / 2000J
- Easy user friendly interface
- High safety level
- Multistep self fault protection
- Sheath fault location up to 10kV
- Surge ranges /time/Hipot voltage setting /Burn voltage setting controlled by single knob rotary switch.
- System error shall be displayed in a display 10.1inch) along with its error code.
- Precise fault prelocating using Time-Domain Reflectometer
Note : Other ratings of test / burn / surge / sheath shall be available on request .
For details specification , please consult factory
Generator (Optional)
Generator : 6.5kVA Honda or similar make (Optional)
Trailer
- Trailer 4 wheeler (Inside dimensions - 3400(L) x 1700(W) x 1850(H)mm
- Seating arrangement for operator
- Seating arrangement for 3 persons including operator
- Writing desk for operator
- Two sections in the Trailer - Operating section & HV section
- Cable Outlet on rear door
- External Emergency OFF
- Air Conditioner
Cable Drums
- HV Cable 50kV - 50 mtr.
- Mains Cable - 50 mtr.
- Earthing Cable - 50 mtr.
- Aux. Earth Cable - 20mtr.
- TDR Cable - 50mtr.
- Other Cable length as per customer request
Standard Accessories
- Insulation Tester 15kV
- SDR - 70kV
- Multimeter
- Rodometer
- Fire Extinghisher
- Isolation Transformer 2.5kVA
- Earth Spike
- Cooling Fan
- Tools Set
- Instruction ? Operating Manual
- Trailer Floorng - Copper Sheet ,Rubber Sheet & Carpet
- Sheath Fault Locator EFL 1 (Optional)
Standard Warranty 1 Years
Customisation of the systems are available on request
